Overfeeding a child is child abuse

If it hurts the child in obvious fashion, how is overfeeding not child abuse?  If 30 percent of children are obese and have a six-fold increase in lifetime mortality, then that is clear harm.  Since parents today have no idea what food is or how to eat, it may be unreasonable to expect that they can feed a dependent let alone themselves.  In this case, a little bit of extreme response may be needed to correct the overall problem of poor food education and poor diet.